88 lines
2.8 KiB
JavaScript
88 lines
2.8 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var graphic = require("../../util/graphic");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var sin = Math.sin;
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var cos = Math.cos;
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var _default = graphic.extendShape({
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type: 'ec-ribbon',
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shape: {
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cx: 0,
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cy: 0,
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r: 0,
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s0: 0,
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s1: 0,
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t0: 0,
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t1: 0
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},
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style: {
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fill: '#000'
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},
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buildPath: function (ctx, shape) {
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var clockwise = shape.clockwise || false;
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var cx = shape.cx;
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var cy = shape.cy;
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var r = shape.r;
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var s0 = shape.s0;
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var s1 = shape.s1;
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var t0 = shape.t0;
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var t1 = shape.t1;
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var sx0 = cx + cos(s0) * r;
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var sy0 = cy + sin(s0) * r;
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var sx1 = cx + cos(s1) * r;
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var sy1 = cy + sin(s1) * r;
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var tx0 = cx + cos(t0) * r;
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var ty0 = cy + sin(t0) * r;
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var tx1 = cx + cos(t1) * r;
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var ty1 = cy + sin(t1) * r;
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ctx.moveTo(sx0, sy0);
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ctx.arc(cx, cy, shape.r, s0, s1, !clockwise);
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ctx.bezierCurveTo((cx - sx1) * 0.70 + sx1, (cy - sy1) * 0.70 + sy1, (cx - tx0) * 0.70 + tx0, (cy - ty0) * 0.70 + ty0, tx0, ty0); // Chord to self
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if (shape.s0 === shape.t0 && shape.s1 === shape.t1) {
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return;
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}
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ctx.arc(cx, cy, shape.r, t0, t1, !clockwise);
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ctx.bezierCurveTo((cx - tx1) * 0.70 + tx1, (cy - ty1) * 0.70 + ty1, (cx - sx0) * 0.70 + sx0, (cy - sy0) * 0.70 + sy0, sx0, sy0);
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}
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});
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module.exports = _default;
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